Suggestion: Check every 140 hours (once a week).
This part describes changing the nozzle holder set on the transfer head, the nozzles and the vacuum filter, and also describes cleaning and lubricating the optional nozzle changer and the nozzles set on it.
Flow chart:
1. Selecting the operation table
2. Removal
a. Removing the nozzle holder from the transfer head (Removing the nozzle from the nozzle changer)
b. Removing the nozzle from the nozzle holder
3. Removing the Vacuum Filter
4. Cleaning
a. Cleaning the nozzle holder
b. Cleaning the nozzle (Cleaning the nozzle changer)
c. The nozzle is not allowed to accept an ultrasonic cleaning. If it accepts the ultrasonic cleaning, the nozzle reflector will corrode to cause a chip recognition error.
5. Setting (Changing) the Vacuum Filter
6. Cleaning the holder of the transfer head
7. Checking and setting the nozzle arrangement
a. Setting the nozzle to the nozzle holder
b. Checking the nozzle arrangement
c. Setting the nozzle holder to the transfer head (Setting the nozzle to the nozzle changer)
8. Re-checking the nozzle arrangement
Nozzle:
Nozzle taper face: This is the part to be chucked by the nozzle holder of the transfer head. The taper face or chucking groove with dust or dirt will cause air leakage or false chucking.
Nozzle reflector: This is the black resin part. To prevent the surface from being dirty, the special coating is given to it. Chips are recognized by reflecting the LED light from the line camera. This part with dirt will cause false recognition.
Nozzle tip (Nozzle): This is the part to directly contact with and pick up chips. Dust on the sides can be the shadow in recognition and cause the false recognition. Dirt in the pickup hole will cause false pickup.
Nozzle holder:
Spring for nozzle cushion: Dirt on this spring will prevent proper work of the nozzle cushion.
Inner and outer circumferences of the nozzle holder: Dirt on the inner and outer circumferences of the nozzle holder will prevent proper operation of it, with the deterioration of the mounting accuracy and a pick-up error.
Spring for nozzle clamp arm holder: This section holds the clamp arm. Dirt on the spring will prevent proper operation of the nozzle clamp.
Nozzle holder engagement face: Dirt on the engagement face of the nozzle holder causes an air leak, because it will not closely contact with the nozzle surface in nozzle chucking. This prevents the nozzle from picking up chips properly and will deteriorate the mount accuracy and make false pickup.
Nozzle clamp arm: This directly catches the nozzle. Dirt on the arm will prevent catching the nozzle, precision parts, lead to air leakage, and cause wrong pickup and mounting.
Vacuum Filter:
This is located on the air route and prevents dust in the air from coming into the machine. If dust accumulates here, it will be hard to generate and break a vacuum at the tips of the nozzles; therefore, the machine cannot display its true performance.
The filter is expendable. If it accepts the ultrasonic cleaning, it will be clean outwardly, however, the passing flow rate will not be restored, with a pick-up error and the deterioration of the mounting accuracy.
Tools: Cloth, air ejector, grease gun, syringe and tweezers. Required time 30 minutes